| /* |
| * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project |
| * 2006. |
| */ |
| /* ==================================================================== |
| * Copyright (c) 2006 The OpenSSL Project. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in |
| * the documentation and/or other materials provided with the |
| * distribution. |
| * |
| * 3. All advertising materials mentioning features or use of this |
| * software must display the following acknowledgment: |
| * "This product includes software developed by the OpenSSL Project |
| * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" |
| * |
| * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to |
| * endorse or promote products derived from this software without |
| * prior written permission. For written permission, please contact |
| * licensing@OpenSSL.org. |
| * |
| * 5. Products derived from this software may not be called "OpenSSL" |
| * nor may "OpenSSL" appear in their names without prior written |
| * permission of the OpenSSL Project. |
| * |
| * 6. Redistributions of any form whatsoever must retain the following |
| * acknowledgment: |
| * "This product includes software developed by the OpenSSL Project |
| * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY |
| * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR |
| * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
| * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, |
| * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
| * OF THE POSSIBILITY OF SUCH DAMAGE. |
| * ==================================================================== |
| * |
| * This product includes cryptographic software written by Eric Young |
| * (eay@cryptsoft.com). This product includes software written by Tim |
| * Hudson (tjh@cryptsoft.com). |
| * |
| */ |
| |
| #include "apps.h" |
| #include <string.h> |
| #include <openssl/err.h> |
| #include <openssl/pem.h> |
| #include <openssl/evp.h> |
| |
| #define KEY_PRIVKEY 1 |
| #define KEY_PUBKEY 2 |
| #define KEY_CERT 3 |
| |
| static EVP_PKEY_CTX *init_ctx(int *pkeysize, |
| const char *keyfile, int keyform, int key_type, |
| char *passinarg, int pkey_op, ENGINE *e, |
| const int impl); |
| |
| static int setup_peer(EVP_PKEY_CTX *ctx, int peerform, const char *file, |
| ENGINE *e); |
| |
| static int do_keyop(EVP_PKEY_CTX *ctx, int pkey_op, |
| unsigned char *out, size_t *poutlen, |
| unsigned char *in, size_t inlen); |
| |
| typedef enum OPTION_choice { |
| OPT_ERR = -1, OPT_EOF = 0, OPT_HELP, |
| OPT_ENGINE, OPT_ENGINE_IMPL, OPT_IN, OPT_OUT, |
| OPT_PUBIN, OPT_CERTIN, OPT_ASN1PARSE, OPT_HEXDUMP, OPT_SIGN, |
| OPT_VERIFY, OPT_VERIFYRECOVER, OPT_REV, OPT_ENCRYPT, OPT_DECRYPT, |
| OPT_DERIVE, OPT_SIGFILE, OPT_INKEY, OPT_PEERKEY, OPT_PASSIN, |
| OPT_PEERFORM, OPT_KEYFORM, OPT_PKEYOPT |
| } OPTION_CHOICE; |
| |
| OPTIONS pkeyutl_options[] = { |
| {"help", OPT_HELP, '-', "Display this summary"}, |
| {"in", OPT_IN, '<', "Input file - default stdin"}, |
| {"out", OPT_OUT, '>', "Output file - default stdout"}, |
| {"pubin", OPT_PUBIN, '-', "Input is a public key"}, |
| {"certin", OPT_CERTIN, '-', "Input is a cert with a public key"}, |
| {"asn1parse", OPT_ASN1PARSE, '-', "asn1parse the output data"}, |
| {"hexdump", OPT_HEXDUMP, '-', "Hex dump output"}, |
| {"sign", OPT_SIGN, '-', "Sign input data with private key"}, |
| {"verify", OPT_VERIFY, '-', "Verify with public key"}, |
| {"verifyrecover", OPT_VERIFYRECOVER, '-', |
| "Verify with public key, recover original data"}, |
| {"rev", OPT_REV, '-', "Reverse the order of the input buffer"}, |
| {"encrypt", OPT_ENCRYPT, '-', "Encrypt input data with public key"}, |
| {"decrypt", OPT_DECRYPT, '-', "Decrypt input data with private key"}, |
| {"derive", OPT_DERIVE, '-', "Derive shared secret"}, |
| {"sigfile", OPT_SIGFILE, '<', "Signature file (verify operation only)"}, |
| {"inkey", OPT_INKEY, 's', "Input private key file"}, |
| {"peerkey", OPT_PEERKEY, 's', "Peer key file used in key derivation"}, |
| {"passin", OPT_PASSIN, 's', "Pass phrase source"}, |
| {"peerform", OPT_PEERFORM, 'E', "Peer key format - default PEM"}, |
| {"keyform", OPT_KEYFORM, 'E', "Private key format - default PEM"}, |
| {"pkeyopt", OPT_PKEYOPT, 's', "Public key options as opt:value"}, |
| #ifndef OPENSSL_NO_ENGINE |
| {"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"}, |
| {"engine_impl", OPT_ENGINE_IMPL, '-', |
| "Also use engine given by -engine for crypto operations"}, |
| #endif |
| {NULL} |
| }; |
| |
| int pkeyutl_main(int argc, char **argv) |
| { |
| BIO *in = NULL, *out = NULL; |
| ENGINE *e = NULL; |
| EVP_PKEY_CTX *ctx = NULL; |
| char *infile = NULL, *outfile = NULL, *sigfile = NULL, *passinarg = NULL; |
| char hexdump = 0, asn1parse = 0, rev = 0, *prog; |
| unsigned char *buf_in = NULL, *buf_out = NULL, *sig = NULL; |
| OPTION_CHOICE o; |
| int buf_inlen = 0, siglen = -1, keyform = FORMAT_PEM, peerform = |
| FORMAT_PEM; |
| int keysize = -1, pkey_op = EVP_PKEY_OP_SIGN, key_type = KEY_PRIVKEY; |
| int engine_impl = 0; |
| int ret = 1, rv = -1; |
| size_t buf_outlen; |
| const char *inkey = NULL; |
| const char *peerkey = NULL; |
| STACK_OF(OPENSSL_STRING) *pkeyopts = NULL; |
| |
| prog = opt_init(argc, argv, pkeyutl_options); |
| while ((o = opt_next()) != OPT_EOF) { |
| switch (o) { |
| case OPT_EOF: |
| case OPT_ERR: |
| opthelp: |
| BIO_printf(bio_err, "%s: Use -help for summary.\n", prog); |
| goto end; |
| case OPT_HELP: |
| opt_help(pkeyutl_options); |
| ret = 0; |
| goto end; |
| case OPT_IN: |
| infile = opt_arg(); |
| break; |
| case OPT_OUT: |
| outfile = opt_arg(); |
| break; |
| case OPT_SIGFILE: |
| sigfile = opt_arg(); |
| break; |
| case OPT_ENGINE_IMPL: |
| engine_impl = 1; |
| break; |
| case OPT_INKEY: |
| inkey = opt_arg(); |
| break; |
| case OPT_PEERKEY: |
| peerkey = opt_arg(); |
| break; |
| case OPT_PASSIN: |
| passinarg = opt_arg(); |
| break; |
| case OPT_PEERFORM: |
| if (!opt_format(opt_arg(), OPT_FMT_PDE, &peerform)) |
| goto opthelp; |
| break; |
| case OPT_KEYFORM: |
| if (!opt_format(opt_arg(), OPT_FMT_PDE, &keyform)) |
| goto opthelp; |
| break; |
| case OPT_ENGINE: |
| e = setup_engine(opt_arg(), 0); |
| break; |
| case OPT_PUBIN: |
| key_type = KEY_PUBKEY; |
| break; |
| case OPT_CERTIN: |
| key_type = KEY_CERT; |
| break; |
| case OPT_ASN1PARSE: |
| asn1parse = 1; |
| break; |
| case OPT_HEXDUMP: |
| hexdump = 1; |
| break; |
| case OPT_SIGN: |
| pkey_op = EVP_PKEY_OP_SIGN; |
| break; |
| case OPT_VERIFY: |
| pkey_op = EVP_PKEY_OP_VERIFY; |
| break; |
| case OPT_VERIFYRECOVER: |
| pkey_op = EVP_PKEY_OP_VERIFYRECOVER; |
| break; |
| case OPT_ENCRYPT: |
| pkey_op = EVP_PKEY_OP_ENCRYPT; |
| break; |
| case OPT_DECRYPT: |
| pkey_op = EVP_PKEY_OP_DECRYPT; |
| break; |
| case OPT_DERIVE: |
| pkey_op = EVP_PKEY_OP_DERIVE; |
| break; |
| case OPT_REV: |
| rev = 1; |
| break; |
| case OPT_PKEYOPT: |
| if ((pkeyopts == NULL && |
| (pkeyopts = sk_OPENSSL_STRING_new_null()) == NULL) || |
| sk_OPENSSL_STRING_push(pkeyopts, opt_arg()) == 0) { |
| BIO_puts(bio_err, "out of memory\n"); |
| goto end; |
| } |
| break; |
| } |
| } |
| argc = opt_num_rest(); |
| if (argc != 0) |
| goto opthelp; |
| |
| if (inkey == NULL || |
| (peerkey != NULL && pkey_op != EVP_PKEY_OP_DERIVE)) |
| goto opthelp; |
| |
| ctx = init_ctx(&keysize, inkey, keyform, key_type, |
| passinarg, pkey_op, e, engine_impl); |
| if (ctx == NULL) { |
| BIO_printf(bio_err, "%s: Error initializing context\n", prog); |
| ERR_print_errors(bio_err); |
| goto end; |
| } |
| if (peerkey != NULL && !setup_peer(ctx, peerform, peerkey, e)) { |
| BIO_printf(bio_err, "%s: Error setting up peer key\n", prog); |
| ERR_print_errors(bio_err); |
| goto end; |
| } |
| if (pkeyopts != NULL) { |
| int num = sk_OPENSSL_STRING_num(pkeyopts); |
| int i; |
| |
| for (i = 0; i < num; ++i) { |
| const char *opt = sk_OPENSSL_STRING_value(pkeyopts, i); |
| |
| if (pkey_ctrl_string(ctx, opt) <= 0) { |
| BIO_printf(bio_err, "%s: Can't set parameter:\n", prog); |
| ERR_print_errors(bio_err); |
| goto end; |
| } |
| } |
| } |
| |
| if (sigfile && (pkey_op != EVP_PKEY_OP_VERIFY)) { |
| BIO_printf(bio_err, |
| "%s: Signature file specified for non verify\n", prog); |
| goto end; |
| } |
| |
| if (!sigfile && (pkey_op == EVP_PKEY_OP_VERIFY)) { |
| BIO_printf(bio_err, |
| "%s: No signature file specified for verify\n", prog); |
| goto end; |
| } |
| |
| /* FIXME: seed PRNG only if needed */ |
| app_RAND_load_file(NULL, 0); |
| |
| if (pkey_op != EVP_PKEY_OP_DERIVE) { |
| in = bio_open_default(infile, 'r', FORMAT_BINARY); |
| if (in == NULL) |
| goto end; |
| } |
| out = bio_open_default(outfile, 'w', FORMAT_BINARY); |
| if (out == NULL) |
| goto end; |
| |
| if (sigfile) { |
| BIO *sigbio = BIO_new_file(sigfile, "rb"); |
| if (!sigbio) { |
| BIO_printf(bio_err, "Can't open signature file %s\n", sigfile); |
| goto end; |
| } |
| siglen = bio_to_mem(&sig, keysize * 10, sigbio); |
| BIO_free(sigbio); |
| if (siglen < 0) { |
| BIO_printf(bio_err, "Error reading signature data\n"); |
| goto end; |
| } |
| } |
| |
| if (in) { |
| /* Read the input data */ |
| buf_inlen = bio_to_mem(&buf_in, keysize * 10, in); |
| if (buf_inlen < 0) { |
| BIO_printf(bio_err, "Error reading input Data\n"); |
| exit(1); |
| } |
| if (rev) { |
| size_t i; |
| unsigned char ctmp; |
| size_t l = (size_t)buf_inlen; |
| for (i = 0; i < l / 2; i++) { |
| ctmp = buf_in[i]; |
| buf_in[i] = buf_in[l - 1 - i]; |
| buf_in[l - 1 - i] = ctmp; |
| } |
| } |
| } |
| |
| if (pkey_op == EVP_PKEY_OP_VERIFY) { |
| rv = EVP_PKEY_verify(ctx, sig, (size_t)siglen, |
| buf_in, (size_t)buf_inlen); |
| if (rv == 1) { |
| BIO_puts(out, "Signature Verified Successfully\n"); |
| ret = 0; |
| } else |
| BIO_puts(out, "Signature Verification Failure\n"); |
| goto end; |
| } |
| rv = do_keyop(ctx, pkey_op, NULL, (size_t *)&buf_outlen, |
| buf_in, (size_t)buf_inlen); |
| if (rv > 0 && buf_outlen != 0) { |
| buf_out = app_malloc(buf_outlen, "buffer output"); |
| rv = do_keyop(ctx, pkey_op, |
| buf_out, (size_t *)&buf_outlen, |
| buf_in, (size_t)buf_inlen); |
| } |
| if (rv <= 0) { |
| BIO_puts(bio_err, "Public Key operation error\n"); |
| ERR_print_errors(bio_err); |
| goto end; |
| } |
| ret = 0; |
| |
| if (asn1parse) { |
| if (!ASN1_parse_dump(out, buf_out, buf_outlen, 1, -1)) |
| ERR_print_errors(bio_err); |
| } else if (hexdump) |
| BIO_dump(out, (char *)buf_out, buf_outlen); |
| else |
| BIO_write(out, buf_out, buf_outlen); |
| |
| end: |
| EVP_PKEY_CTX_free(ctx); |
| BIO_free(in); |
| BIO_free_all(out); |
| OPENSSL_free(buf_in); |
| OPENSSL_free(buf_out); |
| OPENSSL_free(sig); |
| sk_OPENSSL_STRING_free(pkeyopts); |
| return ret; |
| } |
| |
| static EVP_PKEY_CTX *init_ctx(int *pkeysize, |
| const char *keyfile, int keyform, int key_type, |
| char *passinarg, int pkey_op, ENGINE *e, |
| const int engine_impl) |
| { |
| EVP_PKEY *pkey = NULL; |
| EVP_PKEY_CTX *ctx = NULL; |
| ENGINE *impl = NULL; |
| char *passin = NULL; |
| int rv = -1; |
| X509 *x; |
| if (((pkey_op == EVP_PKEY_OP_SIGN) || (pkey_op == EVP_PKEY_OP_DECRYPT) |
| || (pkey_op == EVP_PKEY_OP_DERIVE)) |
| && (key_type != KEY_PRIVKEY)) { |
| BIO_printf(bio_err, "A private key is needed for this operation\n"); |
| goto end; |
| } |
| if (!app_passwd(passinarg, NULL, &passin, NULL)) { |
| BIO_printf(bio_err, "Error getting password\n"); |
| goto end; |
| } |
| switch (key_type) { |
| case KEY_PRIVKEY: |
| pkey = load_key(keyfile, keyform, 0, passin, e, "Private Key"); |
| break; |
| |
| case KEY_PUBKEY: |
| pkey = load_pubkey(keyfile, keyform, 0, NULL, e, "Public Key"); |
| break; |
| |
| case KEY_CERT: |
| x = load_cert(keyfile, keyform, "Certificate"); |
| if (x) { |
| pkey = X509_get_pubkey(x); |
| X509_free(x); |
| } |
| break; |
| |
| } |
| |
| *pkeysize = EVP_PKEY_size(pkey); |
| |
| if (!pkey) |
| goto end; |
| |
| #ifndef OPENSSL_NO_ENGINE |
| if (engine_impl) |
| impl = e; |
| #endif |
| |
| ctx = EVP_PKEY_CTX_new(pkey, impl); |
| |
| EVP_PKEY_free(pkey); |
| |
| if (ctx == NULL) |
| goto end; |
| |
| switch (pkey_op) { |
| case EVP_PKEY_OP_SIGN: |
| rv = EVP_PKEY_sign_init(ctx); |
| break; |
| |
| case EVP_PKEY_OP_VERIFY: |
| rv = EVP_PKEY_verify_init(ctx); |
| break; |
| |
| case EVP_PKEY_OP_VERIFYRECOVER: |
| rv = EVP_PKEY_verify_recover_init(ctx); |
| break; |
| |
| case EVP_PKEY_OP_ENCRYPT: |
| rv = EVP_PKEY_encrypt_init(ctx); |
| break; |
| |
| case EVP_PKEY_OP_DECRYPT: |
| rv = EVP_PKEY_decrypt_init(ctx); |
| break; |
| |
| case EVP_PKEY_OP_DERIVE: |
| rv = EVP_PKEY_derive_init(ctx); |
| break; |
| } |
| |
| if (rv <= 0) { |
| EVP_PKEY_CTX_free(ctx); |
| ctx = NULL; |
| } |
| |
| end: |
| OPENSSL_free(passin); |
| return ctx; |
| |
| } |
| |
| static int setup_peer(EVP_PKEY_CTX *ctx, int peerform, const char *file, |
| ENGINE* e) |
| { |
| EVP_PKEY *peer = NULL; |
| ENGINE* engine = NULL; |
| int ret; |
| |
| if (peerform == FORMAT_ENGINE) |
| engine = e; |
| peer = load_pubkey(file, peerform, 0, NULL, engine, "Peer Key"); |
| if (!peer) { |
| BIO_printf(bio_err, "Error reading peer key %s\n", file); |
| ERR_print_errors(bio_err); |
| return 0; |
| } |
| |
| ret = EVP_PKEY_derive_set_peer(ctx, peer); |
| |
| EVP_PKEY_free(peer); |
| if (ret <= 0) |
| ERR_print_errors(bio_err); |
| return ret; |
| } |
| |
| static int do_keyop(EVP_PKEY_CTX *ctx, int pkey_op, |
| unsigned char *out, size_t *poutlen, |
| unsigned char *in, size_t inlen) |
| { |
| int rv = 0; |
| switch (pkey_op) { |
| case EVP_PKEY_OP_VERIFYRECOVER: |
| rv = EVP_PKEY_verify_recover(ctx, out, poutlen, in, inlen); |
| break; |
| |
| case EVP_PKEY_OP_SIGN: |
| rv = EVP_PKEY_sign(ctx, out, poutlen, in, inlen); |
| break; |
| |
| case EVP_PKEY_OP_ENCRYPT: |
| rv = EVP_PKEY_encrypt(ctx, out, poutlen, in, inlen); |
| break; |
| |
| case EVP_PKEY_OP_DECRYPT: |
| rv = EVP_PKEY_decrypt(ctx, out, poutlen, in, inlen); |
| break; |
| |
| case EVP_PKEY_OP_DERIVE: |
| rv = EVP_PKEY_derive(ctx, out, poutlen); |
| break; |
| |
| } |
| return rv; |
| } |
